US3178209A - Ball and socket joint - Google Patents

Ball and socket joint Download PDF

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Publication number
US3178209A
US3178209A US182702A US18270262A US3178209A US 3178209 A US3178209 A US 3178209A US 182702 A US182702 A US 182702A US 18270262 A US18270262 A US 18270262A US 3178209 A US3178209 A US 3178209A
Authority
US
United States
Prior art keywords
ball
head
bolt
socket joint
bearing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US182702A
Inventor
Gottschald Rudolf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VIKTOR LANGEN TRADING AS A EHR
Viktor Langen Trading As A Ehrenreich & Cie
Original Assignee
VIKTOR LANGEN TRADING AS A EHR
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to FR805694A priority Critical patent/FR1236345A/en
Priority to US841535A priority patent/US3073634A/en
Priority claimed from US841535A external-priority patent/US3073634A/en
Application filed by VIKTOR LANGEN TRADING AS A EHR filed Critical VIKTOR LANGEN TRADING AS A EHR
Priority to US182702A priority patent/US3178209A/en
Application granted granted Critical
Publication of US3178209A publication Critical patent/US3178209A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/068—Special features relating to lubrication
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0619—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints the female part comprising a blind socket receiving the male part
    • F16C11/0623—Construction or details of the socket member
    • F16C11/0628—Construction or details of the socket member with linings
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T403/00—Joints and connections
    • Y10T403/32—Articulated members
    • Y10T403/32606—Pivoted
    • Y10T403/32631—Universal ball and socket
    • Y10T403/32737—Universal ball and socket including liner, shim, or discrete seat
    • Y10T403/32771—Porous

Definitions

  • the object of the invention is the lubrication of the head to increase the period of time between inspections, whereby it is possible to improve still further an already proposed joint having a bearing cup of plastic material requiring little attention.
  • a part of the covering of the ball bolt head is formed by a porous insert, for example, of foamed material, felt or the like filled with lubricant.
  • a porous insert for example, of foamed material, felt or the like filled with lubricant.
  • a further object of the invention is the lubrication of the porous or felt ring to provide the lubricant for the surfaces.
  • the ball joint consists of a ball casing 11, two bearing cups 2, 3, and a ball bolt 7.
  • the head of the ball bolt rotates in the bearing cups 2, 3.
  • the bearing cups 2, 3 may be formed of elastically resilient synthetic material between the impact surfaces of which a porous lubricant impregnated insert 8 of annular shape, is mounted, thereby further improving the favourable lubricating properties of the ball joint. With every loading the ball cups are slightly deformed whereby lubricant is continuously pressed out of the insert 8 to provide a film between the bearing surfaces.
  • a lubricating nipple for the insert material 8 may be provided.
  • the porous insert 8 holds the lubricant substantially longer than a hollow space without insert. In this way, a joint requiring little attention is obtained which requires a fresh filling of grease only at very long intervals of time, and joints with synthetic material bearing cups requiring no attention are on the other hand further improved in respect of a prolongation of their life.
  • a ball and socket joint comprising a ball casing, a ball bolt, a head on said bolt, at least two spaced 1'e silient bearing cups surrounding said bolt head and mounted in said casing in bearing surface contact with said head, said bearing cups being elastically deformable under normal working loads of said ball and socket joint, and an insert of resilient porous material impregnated with lubricant and constituting the sole source of lubrication for said joint, said insert comprising a ring between the adjacent impact faces of said bearing cups whereby the deformation of said bearing cups during the operation of said joint compresses said insert to eifect a pumping action upon said insert and supply lubricant to the bearing surfaces of both said cups and said bolt head.
  • a ball and socket joint comprising: a ball casing, a ball bolt, a head on said bolt, said head being rotatable and translationally movable Within said casing, at least two spaced resilient bearing cups mounted within said casing and engaging said head in bearing surface contact therewith, said bearing cups resiliently bearing against said head and being elastically deformable under normal working loads of said ball and socket joint, at least a portion thereof being compressed by said translational movement of said head within said casing, and an insert of resilient porous material impregnated with lubricant disposed between and engaging opposed surfaces of said spaced bearing cups and constituting the sole source of lubrication for the joint, said displacement of the bearing cups caused by said translational movement of said head compressing the insert to provide a pumping action thereon and supply lubricant to the bearing surfaces of both said cups and head.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pivots And Pivotal Connections (AREA)

Description

April 1965 R. GOTTSCHALD 3,178,209
BALL AND SOCKET JOINT OriginalFiled Sept. 22. 1959 INVENTOR. RUDOLF GOTTSCHALD United States Patent 2 Claims. (31. 287-87) This invention relates to improvements in ball and socket joints of the kind comprising a ball casing, a ball bolt and at least two bearing cups enclosing the head of the bolt. This application is a division of application Serial No. 841,535 filed September 22, 1959, now Patent 3,073,634 entitled Ball Socket Joint.
The object of the invention is the lubrication of the head to increase the period of time between inspections, whereby it is possible to improve still further an already proposed joint having a bearing cup of plastic material requiring little attention.
According to the invention a part of the covering of the ball bolt head is formed by a porous insert, for example, of foamed material, felt or the like filled with lubricant. As the bearing cups are usually spring loaded and on loading therefore can yield to a certain amount there is a pumping action, whereby a film of lubricant is provided between the surfaces sliding on one another.
A further object of the invention is the lubrication of the porous or felt ring to provide the lubricant for the surfaces.
The invention will be described with reference to the accompanying drawing showing a vertical section of the invention.
In accordance with this invention, the ball joint consists of a ball casing 11, two bearing cups 2, 3, and a ball bolt 7. The head of the ball bolt rotates in the bearing cups 2, 3.
The bearing cups 2, 3 may be formed of elastically resilient synthetic material between the impact surfaces of which a porous lubricant impregnated insert 8 of annular shape, is mounted, thereby further improving the favourable lubricating properties of the ball joint. With every loading the ball cups are slightly deformed whereby lubricant is continuously pressed out of the insert 8 to provide a film between the bearing surfaces.
ice
A lubricating nipple for the insert material 8 may be provided.
The porous insert 8 holds the lubricant substantially longer than a hollow space without insert. In this way, a joint requiring little attention is obtained which requires a fresh filling of grease only at very long intervals of time, and joints with synthetic material bearing cups requiring no attention are on the other hand further improved in respect of a prolongation of their life.
I claim:
1. A ball and socket joint comprising a ball casing, a ball bolt, a head on said bolt, at least two spaced 1'e silient bearing cups surrounding said bolt head and mounted in said casing in bearing surface contact with said head, said bearing cups being elastically deformable under normal working loads of said ball and socket joint, and an insert of resilient porous material impregnated with lubricant and constituting the sole source of lubrication for said joint, said insert comprising a ring between the adjacent impact faces of said bearing cups whereby the deformation of said bearing cups during the operation of said joint compresses said insert to eifect a pumping action upon said insert and supply lubricant to the bearing surfaces of both said cups and said bolt head.
2. A ball and socket joint comprising: a ball casing, a ball bolt, a head on said bolt, said head being rotatable and translationally movable Within said casing, at least two spaced resilient bearing cups mounted within said casing and engaging said head in bearing surface contact therewith, said bearing cups resiliently bearing against said head and being elastically deformable under normal working loads of said ball and socket joint, at least a portion thereof being compressed by said translational movement of said head within said casing, and an insert of resilient porous material impregnated with lubricant disposed between and engaging opposed surfaces of said spaced bearing cups and constituting the sole source of lubrication for the joint, said displacement of the bearing cups caused by said translational movement of said head compressing the insert to provide a pumping action thereon and supply lubricant to the bearing surfaces of both said cups and head.
References Cited in the file of this patent UNITED STATES PATENTS

Claims (1)

1. A BALL AND SOCKET JOINT COMPRISING A BALL CASING, A BALL BOLT, A HEAD ON SAID BOLT, AT LEAST TWO SPACED RESILIENT BEARING CUPS SURROUNDING SAID BOLT AND MOUNTED IN SAID CASING IN BEARING SURFACE CONTACT WITH SAID HEAD, SAID BEARING CUPS BEING ELASTICALLY DEFORMABLE UNDER NORMAL WORKING LOADS OF SAID BALL AND SOCKET JOINT, AND AN INSERT OF RESILIENT POROUS MATERIAL IMPREGNATED WITH LUBRICANT AND CONSTITUTING THE SOLE SOURCE OF LUBRICATION FOR
US182702A 1958-09-24 1962-02-28 Ball and socket joint Expired - Lifetime US3178209A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR805694A FR1236345A (en) 1958-09-24 1959-09-22 Very low maintenance ball joint
US841535A US3073634A (en) 1958-09-24 1959-09-22 Ball and socket joints
US182702A US3178209A (en) 1958-09-24 1962-02-28 Ball and socket joint

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE3073634X 1958-09-24
US841535A US3073634A (en) 1958-09-24 1959-09-22 Ball and socket joints
US182702A US3178209A (en) 1958-09-24 1962-02-28 Ball and socket joint

Publications (1)

Publication Number Publication Date
US3178209A true US3178209A (en) 1965-04-13

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US182702A Expired - Lifetime US3178209A (en) 1958-09-24 1962-02-28 Ball and socket joint

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4875794A (en) * 1987-12-23 1989-10-24 Dana Corporation Preloaded steering ball joint assembly and method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1520862A (en) * 1924-04-25 1924-12-30 Faudi Fritz Spherical joint
US2921809A (en) * 1954-03-26 1960-01-19 O & S Bearing & Mfg Co Ball joint seal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1520862A (en) * 1924-04-25 1924-12-30 Faudi Fritz Spherical joint
US2921809A (en) * 1954-03-26 1960-01-19 O & S Bearing & Mfg Co Ball joint seal

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4875794A (en) * 1987-12-23 1989-10-24 Dana Corporation Preloaded steering ball joint assembly and method

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